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Finding the Fourth Proportional to 5,000.87, 7,501.12 and 1,252.65

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Solution

The fourth proportional to 5,000.87, 7,501.12 and 1,252.65 is: 1,878.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.87 : 7,501.12 = 1,252.65 : x
  2. Step 2: Convert to fraction form
    5,000.87/7,501.12 = 1,252.65/x
  3. Step 3: Cross multiply
    5,000.87x = 7,501.12 × 1,252.65
  4. Step 4: Simplify right side
    5,000.87x = 9,396,246.71
  5. Step 5: Solve for x
    x = 9,396,246.71/5,000.87
  6. Step 6: Final answer
    x = 1,878.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.